#include<stdio.h>
#include<math.h>
int main()
{
	double y, x, a;
	for (y = 1.5;y > -1.5;y -= 0.1)
	{
		for (x = -1.5;x < 1.5;x += 0.05)
		{
			a = pow(x * 0.8, 2) + pow(y, 2) - 1;
			putchar(a * a * a - x * x * y * y * y <= 0.0 ? '*' : ' ');
		}
		putchar('\n');
	}
	return 0;
}